Abstract：In order to solve the top vibration of a vertical slender rod supporting structure which is usually used on aviation test equipment, an experimental study on vibration reduction based on particle tuned mass damper is carried out in this paper. The vertical slender rod is a hollow cylinder with slenderness ratio of 43:1. The working condition is that double vertical slender rods are top loaded together with their roots fixed on a rotary device and rotating. The rotating radius is 2.5m and the angular speed is 0.1 ° / s. When rotating, the top of the slender rod is easy to generate vibration, which affects the test motion accuracy and support safety. In order to solve this problem, this paper designs three kinds of particle tuned mass damper with different mass ratios. The dampers are firstly applied to the top of a single no-load slender rod which vibrates obviously to verify the reduction effectiveness. The test result shows that the max-reduction of the vibration amplitude of the single rod is close to 31%. Furthermore, the damper is designed again and applied to the loaded double rods which are used in the actual application condition. The result shows that the max-reduction of the vibration amplitude of the double rods is close to 43%.
李宽，张亮亮，麻恒进，于人龙，张健，杨帅. 颗粒调谐质量阻尼器在竖直细长杆顶端的减振试验研究[J]. 振动与冲击, 2022, 41(10): 278-283.
LI Kuan, ZHANG Liangliang, MA Hengjin, YU Renlong, ZHANG Jian, YANG Shuai. Experimental study on the top vibration reduction of a vertical slender rod by using the particle tuned mass damper. JOURNAL OF VIBRATION AND SHOCK, 2022, 41(10): 278-283.
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